Tue Apr 20, 2010 2:23 pm
package com.codemiles.jpa;
import java.util.Collection;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.OneToMany;
@Entity
@Table(name="TOPIC")
public class Topic implements java.io.Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
private int Id;
private String title;
private Date creationDate;
private Date modifedDate;
private String content;
@OneToMany(mappedBy="topic")
private Collection<Comment> comments;
public int getId() {
return Id;
}
public void setId(int id) {
Id = id;
}
@Column(name="TITLE")
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
@Column(name="CREATION_DATE")
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate;
}
@Column(name="MODIFED_DATE")
public Date getModifedDate() {
return modifedDate;
}
public void setModifedDate(Date modifedDate) {
this.modifedDate = modifedDate;
}
@Column(name="CONTENT")
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public void setComments(Collection<Comment> comments) {
this.comments = comments;
}
public Collection<Comment> getComments() {
return comments;
}
}
package com.codemiles.jpa;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
/**
* @author codemiles
*
*/
@Entity
@Table(name="COMMENT")
@IdClass(Comment_Id.class)
public class Comment implements java.io.Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
private int Id;
private String title;
private Date creationDate;
private Date modifedDate;
private String commentBody;
@Id
@Column(name = "TOPIC_ID", insertable = false, updatable = false)
private int topic_id;
@ManyToOne
@JoinColumn(name = "TOPIC_ID")
private Topic topic;
public int getId() {
return Id;
}
public void setId(int id) {
this.Id = id;
}
@Column(name="TITLE")
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
@Column(name="CREATION_DATE")
public Date getCreationDate() {
return creationDate;
}
public void setCreationDate(Date creationDate) {
this.creationDate = creationDate;
}
@Column(name="MODIFED_DATE")
public Date getModifedDate() {
return modifedDate;
}
public void setModifedDate(Date modifedDate) {
this.modifedDate = modifedDate;
}
public void setCommentBody(String commentBody) {
this.commentBody = commentBody;
}
@Column(name="COMMENT_BODY")
public String getCommentBody() {
return commentBody;
}
public void setTopic_id(int topic_id) {
this.topic_id = topic_id;
}
public int getTopic_id() {
return topic_id;
}
public void setTopic(Topic topic) {
this.topic = topic;
}
public Topic getTopic() {
return topic;
}
}
package com.codemiles.jpa;
/**
* @author codemiles
*
*/
public class Comment_Id implements java.io.Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
private int topic_id;
public Comment_Id(){
}
public Comment_Id(int topic_Id){
this.topic_id=topic_Id;
}
public void setTopic_id(int topic_id) {
this.topic_id = topic_id;
}
public int getId() {
return topic_id;
}
public boolean equals(Object o) {
return ((o instanceof Comment_Id) &&
topic_id == ((Comment_Id) o).getId());
}
public int hashCode() {
return topic_id ;
}
}
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